Radar sensor for use in motor vehicles
First Claim
Patent Images
1. A radar sensor utilized in a motor vehicle, comprising:
- a transmitting antenna element oriented in a first direction and emitting radar beams, at least a portion of the radar beams being reflected in a return direction by an object external to the motor vehicle;
a deflecting surface oriented to redirect the reflected radar beams from the return direction to a second direction different from the first direction; and
a receiving antenna element oriented in the second direction and receiving the redirected radar beams, the receiving antenna element being arranged at a predetermined distance from the transmitting antenna element outside a radiation pattern of the transmitting antenna element.
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Abstract
In order to make the connecting lines from at least one transmitting antenna element and at least one receiving antenna element to a common oscillator as short as possible, the receiving antenna element is arranged outside the radiation pattern of the transmitting antenna element, the transmitting and receiving antenna elements being oriented in different directions. An arrangement deflects the reflected radar beams onto the receiving antenna element and/or deflect the radar beams emitted by the transmitting antenna element in a desired direction.
47 Citations
10 Claims
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1. A radar sensor utilized in a motor vehicle, comprising:
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a transmitting antenna element oriented in a first direction and emitting radar beams, at least a portion of the radar beams being reflected in a return direction by an object external to the motor vehicle; a deflecting surface oriented to redirect the reflected radar beams from the return direction to a second direction different from the first direction; and a receiving antenna element oriented in the second direction and receiving the redirected radar beams, the receiving antenna element being arranged at a predetermined distance from the transmitting antenna element outside a radiation pattern of the transmitting antenna element. - View Dependent Claims (2, 3, 4, 5)
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6. A radar sensor utilized in a motor vehicle, comprising:
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a transmitting antenna element oriented in a transmission direction and emitting radar beams in the transmission direction; a deflecting surface oriented to redirect the emitted radar beams in a redirect direction different than the transmission direction so that, upon reflection of the radar beams off an object external to the motor vehicle, at least a portion of the reflected radar beams return to the motor vehicle in a return direction; and a first receiving antenna element oriented toward the return direction and receiving the reflected radar beams, wherein the return direction is different than the transmission direction, the first receiving antenna element being arranged at a predetermined distance from the transmitting antenna element outside a radiation pattern of the transmitting antenna element. - View Dependent Claims (7, 8, 9, 10)
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Specification